Phono preamp for old Thorens / new Marantz


I just bought a Thorens TD150 MkII turntable from a friend. Has a Rega RB300 arm w/ Sumiko Blue Point cartridge. Was excited to hear some vinyl but discovered my Marantz SR5004 AV receiver has no phono input. Wasn't expecting to spend more money on this but evidently need a preamp. Any suggestions? Can't spend a lot, but don't want the quality of the turntable to get lost in translation to the receiver.
mldiehl
Entry level units from Cambridge and MF look pretty good. I can definately recommend a DV P75, but that may be over budget.
My favorite has been The Graham Gram Slee Amp 2SE which is perfect for a medium output MM. Their other models for MC are good too I understand. It will cost him $400 new I am afraid. Hard to get around the quality for low mon ey thing. I think $4-500 is about right unless you go real low and call it a day like the Belari.